1 files changed, 65 insertions, 0 deletions
diff --git a/MusicDemo/src/main/java/com/example/android/musicservicedemo/utils/LogHelper.java b/MusicDemo/src/main/java/com/example/android/musicservicedemo/utils/LogHelper.java
new file mode 100644
index 0000000..4c757f7
--- /dev/null
+++ b/MusicDemo/src/main/java/com/example/android/musicservicedemo/utils/LogHelper.java
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.example.android.musicservicedemo.utils;
+
+import android.util.Log;
+
+public class LogHelper {
+    public final static void v(String tag, Object... messages) {
+        log(tag, Log.VERBOSE, null, messages);
+    }
+
+    public final static void d(String tag, Object... messages) {
+        log(tag, Log.DEBUG, null, messages);
+    }
+
+    public final static void i(String tag, Object... messages) {
+        log(tag, Log.INFO, null, messages);
+    }
+
+    public final static void w(String tag, Object... messages) {
+        log(tag, Log.WARN, null, messages);
+    }
+
+    public final static void w(String tag, Throwable t, Object... messages) {
+        log(tag, Log.WARN, t, messages);
+    }
+
+    public final static void e(String tag, Object... messages) {
+        log(tag, Log.ERROR, null, messages);
+    }
+
+    public final static void e(String tag, Throwable t, Object... messages) {
+        log(tag, Log.ERROR, t, messages);
+    }
+
+    public final static void log(String tag, int level, Throwable t, Object... messages) {
+        if (messages != null && Log.isLoggable(tag, level)) {
+            String message = null;
+            if (messages.length == 1) {
+                message = messages[0] == null ? null : messages[0].toString();
+            } else {
+                StringBuilder sb = new StringBuilder();
+                for (Object m: messages) {
+                    sb.append(m);
+                }
+                message = sb.toString();
+            }
+            Log.d(tag, message, t);
+        }
+    }
+
+}